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The study showed that the amide-type open-chain ligand has the advantage of adjustable structure and ligand end group interchangeable. The one hand, on the rare earth ion has a good recognition ligand effect, obtained with the novel structure of the complexes. The other hand, easy to adjust the terminal functional group of the ligand in order to achieve a better fluorescence properties of complexes. The paper reported that the two series of open-chain amide type ligand and its rare earth complexes synthesized by elemental analysis, IR, NMR, mass spectrometry, thermal analysis, molar conductance, and other means were characterized, and the fluorescence of rare earth complexes The properties were studied. The paper is divided into four parts: 1. Research and application of functional rare earth supramolecular complexes Progress in the studies and the rare earth complexes. 2. The the ligand L 1 (2,2 '- (1,2 - phenylene oxy) bis (N-phenyl-acetamide)) and L 2 (2 2'-(1,3 - phenylene dioxy) bis (N-phenyl-acetamide)) and its rare earth complexes Synthesis, characterization, fluorescence properties by elemental analysis, nuclear magnetic resonance, differential thermal analysis, infrared spectrum, fluorescence spectrum and its molar conductance and EDTA titration study their composition and properties, ligand L 1 composed of rare earth nitrate complexes: [REL 1 (NO 3 ) 3 ] · H 2 O (RE = La 3 , Eu 3 , Gd 3 , Tb 3 ); the ligand L 2 rare earth nitrate complexes of composition: [RE 2 L 2 2 (NO 3 ) 5 · 3H 2 O] NO 3 (RE = La 3 , Eu 3 , Gd 3 , Tb 3 ). 3. The ligand L 3 (1,4 - bis (oxygen acetyl-2-amino-N-oxide) benzene) and its rare earth complexes synthesis, characterization, and fluorescence properties by elemental analysis, mass spectrometry , NMR, differential thermal analysis, infrared spectroscopy, fluorescence spectrum and its molar conductance and EDTA titration study their composition and properties of rare earth nitrate complexes composed of: [REL 3 ( NO 3 ) 2 ] NO 3 · H 2 O (RE = La 3 , Eu 3 , Gd 3 , Tb 3 ) 4. The the ligand L 4 (1,4 - bis (oxy-acetyl-2-amino-pyridine) benzene), L 5 (1,2 - bis (oxy-acetyl-2-yl aminopyridine) benzene) and L 6 (1,3 - double (oxygen-acetyl-2-aminopyridine) benzene) Synthesis and characterization by elemental analysis, nuclear magnetic resonance, infrared spectroscopy to determine the three with the structure of the body, in the process of synthesis of rare earth complexes does not have the pure complexes, presumably due to poor complexing ability of ligands with rare earth nitrate.
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